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The effect of agricultural practices on sugar beet root aphid (Pemphigus betae Doane) and beneficial epigeal arthropods
The effect of agricultural practices on sugar beet root aphid (Pemphigus betae Doane) and beneficial epigeal arthropodsPretorius, Rudolph J.
The University of Nebraska - Lincoln ProQuest Dissertations & Theses, 2014. 3666218.





